英文關鍵字
beach
clean
cleaning
coast
collect
collecting
conservation
covering
cutlery
damage
degradation
destruction
dirty
discarded
ecology
environment
environmental
garbage
girl
harmful
impact
menace
messy
nature
ocean
one
outdoor
people
person
plastic
pollute
polluted
pollution
preservation
problem
protection
recycling
rubbish
saltwater
saving
sea
social
summer
trash
volunteer
waste
water
woman